# Physics Formulas Lite vs Organic Reactions

The clearest difference is in-app purchases: Physics Formulas Lite at none against Organic Reactions's 2. Physics Formulas Lite also leads on review sentiment (81% vs 68%) and update cadence (every 4 months vs every 10 months). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Organic Reactions sells 2 one-off in-app purchases. Physics Formulas Lite asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.6 for Physics Formulas Lite against 4.7 for Organic Reactions. Both are backed by a comparable volume of ratings — 60 and 170 respectively. Written reviews are what separate them: 81% of Physics Formulas Lite's written reviews are positive against 68% of Organic Reactions's.

Physics Formulas Lite ships an update every 4 months, Organic Reactions every 10 months. The most recent releases landed on October 23, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Physics Formulas Lite | Organic Reactions |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (60 ratings)](https://appshunter.io/ios/app/physics-formulas-lite/id814896887/reviews) | **[4.7 (170 ratings)](https://appshunter.io/ios/app/organic-reactions/id1184085187/reviews)** |
| Number of ratings | 60 | **170** |
| Positive reviews | **81.5% of reviews** | 68.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 10 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 43 MB | 16 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [NSC CO. PTY LTD](https://appshunter.io/developer/579522076) | [Florent Breton](https://appshunter.io/developer/1184085186) |

## What reviewers say

### Physics Formulas Lite

[App page](https://appshunter.io/ios/app/physics-formulas-lite/id814896887)

Quickly access and reference physics formulas for study and work. Features include calculation tools, multi-language support, a favorites folder, and formula sharing. Search and add custom formulas and tools.

**Highlights:** Formula reference by category, In-app calculation tools, Multi-language support, Favorites folder for quick access, Formula sharing functionality, Searchable formula database, Add custom formulas and tools

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Organic Reactions

[App page](https://appshunter.io/ios/app/organic-reactions/id1184085187)

Access key functional group reactions and their mechanisms in organic chemistry. Quickly find links between reactants and products, including synthesis and protection reactions. Some advanced features and reaction lists require an additional purchase.

**Highlights:** Functional group reactions, Reaction mechanisms, Reactant-product links, Synthesis reactions, Protection reactions

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One month subscription | $0.99 | one-time |
| Full App | $4.99 | one-time |


## Frequently asked questions

### Is Physics Formulas Lite free?

Physics Formulas Lite is free to download, with no in-app purchases.

### Is Organic Reactions free?

Organic Reactions is free to download, with in-app purchases available.

### Which has better reviews, Physics Formulas Lite or Organic Reactions?

Organic Reactions is rated higher. Physics Formulas Lite averages 4.6 out of 5 from 60 ratings, while Organic Reactions averages 4.7 from 170 ratings.

### Do Physics Formulas Lite or Organic Reactions have ads?

Neither Physics Formulas Lite nor Organic Reactions shows ads.

### Which is updated more often, Physics Formulas Lite or Organic Reactions?

Physics Formulas Lite ships an update every 4 months, and Organic Reactions every 10 months. Most recently, Physics Formulas Lite was updated on October 23, 2026 and Organic Reactions on October 22, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*